Is the cylinder something we can buy and replace ourselves or would we need to consult a locksmith? I hope that the door is locked from the outside - it doesn't open when when we push the handle down. I'm not sure what a pad handle is - the handle on the outside of the door is smaller than the...
Our back door is a uPVC multi-point locking door. Recently, we have been unable to lock it using the key. The door will still latch and unlatch using the handle, and when the door is closed and the handle is pushed up (as was needed to turn the key to lock it previously), we can hear the locks...